The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 1996
Filed:
May. 26, 1995
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
Sliding contact-making structures of an internal combustion engine, which comprise (a) a cylinder unit having an inner plating coating containing a dispersoid substance such as a plating coating of Ni-P-SiC or Ni-SiC; and (b) a piston provided with at least one piston ring, fitted into the inside of the cylinder in the axial direction so as to freely slide upon the inside surface thereof, are characterized in that the piston ring has a surface in sliding contact with the inside surface, which surface is covered with a vapor deposition layer such as a physical vapor deposition layer of TiN or CrN, whereby resistance to friction abrasion and seize, and the friction coefficient can be effectively improved.